modelDyn_wye_3Ph_unbalanced

Variable unbalanced three-phase wye load

Extends from ThreePhaseComponent (Partial model for inheritance of single-phase base power based on three-phase system base power.).

Information

This is a three-phase wye load model that allows the user to vary the power consumed during the simulation.

The user needs to input the actives (P0_a, P0_b, and P0_c) and reactives (Q0_a, Q0_b, and Q0_c) powers consumed by each phase of the load. Since the values come from independent parameters, the model allows the representation of unbalanced loads. The model allows the load to be represented as constant power only.

In addition to that, the real inputs P_in and Q_in multiply the values of active and reactive power, respectively. This allows the load to vary its consumed power over time during the simulation. Note that, since active and reactive powers can vary independently, the load's power factor can also vary. In addition, note that, since P_in and Q_in have a 3x1 dimension, P0_a, P0_b, P0_c, Q0_a, Q0_b, and Q0_c can vary idependently. This makes the load to be characterized as unbalanced.

Parameters

Type	Name	Default	Description
Power flow data
Types.ApparentPower	S_b (from ThreePhaseComponent)	SysData.S_b	System base
Types.ApparentPower	S_p (from ThreePhaseComponent)	SysData.S_b/3	Phase base
Power flow
Types.ActivePower	P0_a		Initial Active power
Types.ReactivePower	Q0_a		Initial Reactive power
Types.ActivePower	P0_b		Initial Active power
Types.ReactivePower	Q0_b		Initial Reactive power
Types.ActivePower	P0_c		Initial Active power
Types.ReactivePower	Q0_c		Initial Reactive power

Connectors

Type	Name	Description
Modelica.Blocks.Interfaces.RealInput[3]	P_in	external P [pu]
Modelica.Blocks.Interfaces.RealInput[3]	Q_in	external Q [pu]
OpenIPSL.Interfaces.PwPin	A
OpenIPSL.Interfaces.PwPin	B
OpenIPSL.Interfaces.PwPin	C

Components

Type	Name	Default	Description
OpenIPSL.Electrical.SystemBase	SysData (from ThreePhaseComponent)		Must add this line in all models